<?php

namespace app\api\controller;

use app\common\controller\Api;
use think\Db;
use addons\epay\library\Service;
/**
 * 充值配置与充值订单
 */
class Payios extends Api
{
    protected $noNeedLogin = ['auto_renewal_vip_notify'];
    protected $noNeedRight = ['*'];

    //vip ios用的
    public function vip_config_ios(){
        $list = Db::name('payvip_config_ios')->field('id,money,days,title,info,bundle_id,is_lianxu')->where('is_show',1)->order('weight asc,id asc')->select();
        $data['vipconfig'] = $list;
        $data['vip_endtime'] = model('wallet')->getWallet($this->auth->id,'vip_endtime');
        $data['is_vip'] = $data['vip_endtime'] > time() ? 1 : 0;
        $data['avatar'] = localpath_to_netpath($this->auth->avatar);
        $this->success('success',$data);
    }

    //vip用的，创建订单
    public function vip_recharge_ios(){
        $rc_id = input('rc_id',0);
        $platform = 'app';
        $uid = $this->auth->id;

        if(!$rc_id){
            $this->error('请选择会员套餐');
        }

        if(!$this->user_auth_limit()){
            $this->error('请先完成实名认证');
        }

        //赋值money
        $recharge_config = Db::name('payvip_config_ios')->where('id',$rc_id)->find();
        $money = $recharge_config['money'];

        if($money<=0)
        {
            $this->error('支付金额必须大于0');
        }
        if($money > 10000){
            $this->error('支付金额太大');
        }

        //创建订单
        $data = [];
        $data['user_id'] = $uid;
        $data['out_trade_no'] = createUniqueNo('V',$uid); // 数据库订单号加密
        $data['order_amount'] = $money;
        $data['createtime'] = time();

        $data['pay_type'] = 'ios';
        $data['platform'] = $platform;
        $data['order_status'] = 0;
        $data['table_name'] = 'vip_recharge';
        $data['table_id'] = 0;
        $data['args'] = json_encode(['days'=>$recharge_config['days']]);
        $data['bundle_id'] = $recharge_config['bundle_id'];
        $data['is_lianxu'] = $recharge_config['is_lianxu'];

        $orderid = Db::name('pay_order')->insertGetId($data);

        $this->success('success',$data['out_trade_no']);
    }

    //vip,苹果内购支付回调
    //因前端不传入订单号，作废，且与gold_notify_iosnew 已完成合并
    public function vip_notify_ios(){

        //苹果内购的验证收据
        $receipt_data = input('apple_receipt', '', 'trim');
        $order_no = input('order_no', '', 'trim');
        filePut('VIP ios充值:参数apple_receipt='.$receipt_data.',order_no='.$order_no);
        if (!$receipt_data || !$order_no) {
            $this->error('缺少参数');
        }

        Db::startTrans();
        // 查找订单
        $order_info = Db::name('pay_order')->where(['out_trade_no' => $order_no])->lock(true)->find();
        if (!$order_info) {
            Db::rollback();
            filePut('VIP ios充值:订单丢失out_trade_no='.$order_no);
            $this->error('订单丢失');
        }
        if ($order_info['order_status'] == 1) {
            Db::rollback();
            $this->success('充值成功');
        }

        // 验证支付状态
        $result = $this->validate_apple_pay($receipt_data);
        if (!$result['status']) {// 验证不通过
            Db::rollback();
            filePut('VIP ios充值:验证out_trade_no='.$order_no.','.$result['message']);
            $this->error($result['message']);
        }

        $count = count($result['data']['receipt']['in_app']);
        $use_count = $count - 1;
        $args = json_decode($order_info['args'],true);
        if ($result['data']['receipt']['in_app'][$use_count]['product_id'] != $order_info['bundle_id']) {
            Db::rollback();
            filePut('VIP ios充值:非法请求，请立刻停止out_trade_no='.$order_no.','.$result['message'].','.$result['data']['receipt']['in_app'][$use_count]['product_id'].'!='.$order_info['bundle_id']);
            $this->error('非法请求，请立刻停止');
        }

        //逻辑开始
        //先充值
        $user_info = Db::name('user_wallet')->where('user_id',$order_info['user_id'])->lock(true)->find();
        if($user_info['vip_endtime'] < time()){
            //过期了
            $vip_endtime = time() + (intval($args['days']) * 86400);
        }else{
            //追加vip
            $vip_endtime = $user_info['vip_endtime'] + (intval($args['days']) * 86400);
        }
        $update_data = [
            'vip_endtime'=>$vip_endtime,
        ];
        $result = Db::name('user_wallet')->where('user_id',$order_info['user_id'])->update($update_data);
        if($result === false)
        {
            Db::rollback();
            filePut('VIP ios充值:验证out_trade_no='.$order_no.',逻辑续费vip时间失败');
            $this->error('充值失败');
        }

        // 修改订单状态
        $ros = Db::name('pay_order')->where(['out_trade_no' => $order_no])->update(['order_status'=>1,'notifytime'=>time()]);
        if($ros === false) {
            filePut('VIP ios充值:充值失败out_trade_no='.$order_no.','.$result['message'].','.'修改订单状态失败');
            Db::rollback();
            $this->error('充值失败');
        }

        Db::commit();
        $this->success('充值成功');

        //逻辑结束
    }

////////////////////////////////

    //金币充值
    public function gold_config_ios(){
        $list = Db::name('paygold_webcon_ios')->field('id,money,gold,bundle_id')->where('is_show',1)->order('weigh asc,id asc')->select();
        $data['goldconfig'] = $list;

        $wallet = model('wallet')->getWallet($this->auth->id);
        $data['wallet'] = $wallet;
        $data['money_to_gold'] = config('site.money_to_gold');
        $this->success('success',$data);
    }

    //充值金币 创建订单
    public function gold_recharge_ios(){

        $rc_id     = input_post('rc_id',0);
        $pay_type  = 'ios';
        $platform  = 'app';
        $uid = $this->auth->id;

        if(!$rc_id){
            $this->error('请选择充值金额');
        }

        if(!$this->user_auth_limit()){
            $this->error('请先完成实名认证');
        }

        //赋值money
        $recharge_config = Db::name('paygold_webcon_ios')->where('id',$rc_id)->find();
        $money = $recharge_config['money'] ?: 0;
        $gold  = $recharge_config['gold'] ?: 0;


        //
        if($money<=0)
        {
            $this->error('支付金额必须大于0');
        }
        if($money > 10000){
            $this->error('支付金额太大');
        }

        //创建订单
        $data['user_id'] = $uid;
        $data['out_trade_no'] = createUniqueNo('P',$uid); // 数据库订单号加密
        $data['order_amount'] = $money;
        $data['createtime'] = time();

        $data['pay_type'] = $pay_type;
        $data['platform'] = $platform;
        $data['order_status'] = 0;
        $data['table_name'] = 'gold_recharge';
        $data['table_id'] = 0;
        $data['args'] = json_encode(['gold'=>$gold]);
        $data['bundle_id'] = $recharge_config['bundle_id'];

        $orderid = Db::name('pay_order')->insertGetId($data);

        $this->success('success',$data['out_trade_no']);
    }

    //订阅信息处理
    public function expires(){

        //苹果订阅的验证收据
        $original_transaction_id = input('original_transaction_id','','trim');
        $receipt_data = input('apple_receipt', '', 'trim');
        $transaction_id = input('transaction_id', '', 'trim');

        if (!$receipt_data || !$original_transaction_id || !$transaction_id) {
            $this->error('缺少参数');
        }

        filePut("\r\n\r\n".'新请求VIP订阅');
        $prefix = 'iosVIP订阅'.',传入original_transaction_id:'.$original_transaction_id.',传入transaction_id:'.$transaction_id.'。';
//        filePut($prefix.'参数apple_receipt:'.$receipt_data);

        //检查重复订单
        $check_map = [
            'original_transaction_id' => $original_transaction_id,
            'transaction_id'          => $transaction_id,
        ];
        $check_order = Db::name('user_vipxufei_task')->where($check_map)->find();
        if($check_order){
            filePut($prefix.'续费早已完成');
            $this->success('充值已完成');
        }

        Db::startTrans();
        //查找订单
        $order_map = [
            'original_transaction_id' => $original_transaction_id,
        ];
        $order_info = Db::name('user_vipxufei_task')->where($order_map)->order('expires_date_ms desc')->lock(true)->find();
        if (!$order_info) {
            Db::rollback();
            filePut($prefix.'不存在的订单');
            $this->error('不存在的订单');
        }

        // 验证支付状态
        $result = $this->validate_apple_pay($receipt_data);
        if (!$result['status']) {// 验证不通过
            Db::rollback();
            filePut($prefix.'验证'.$result['message']);
            $this->error($result['message']);
        }

        $in_app = $result['data']['receipt']['in_app'];

        $only_trans = [];
        foreach($in_app as $key => $trans){
            //非订阅信息，原始信息
            if($trans['transaction_id'] == $transaction_id && $original_transaction_id == $trans['original_transaction_id'] && $trans['product_id'] == $order_info['bundle_id']){
                $only_trans = $trans;
                break;
            }
        }
        if(empty($only_trans)){
            Db::rollback();
            filePut($prefix.'未找到匹配的交易,产品id'.$order_info['bundle_id']);
            $this->error('未找到匹配的交易,产品id'.$order_info['bundle_id']);
        }

        //验证时间
        if($only_trans['purchase_date_ms'] <= $order_info['purchase_date_ms'] || $only_trans['expires_date_ms'] <= $order_info['expires_date_ms']){
            Db::rollback();
            filePut($prefix.'时间对不上，返回成功，finish掉');
            $this->success(1);
        }

        //逻辑开始
        //先充值
        $user_info = Db::name('user_wallet')->where('user_id',$order_info['user_id'])->lock(true)->find();
        if($user_info['vip_endtime'] < time()){
            //过期了
            $vip_endtime = time() + (intval($order_info['days']) * 86400);
        }else{
            //追加vip
            $vip_endtime = $user_info['vip_endtime'] + (intval($order_info['days']) * 86400);
        }
        $update_data = [
            'vip_endtime'=>$vip_endtime,
        ];
        $result = Db::name('user_wallet')->where('user_id',$order_info['user_id'])->update($update_data);
        if($result === false)
        {
            filePut($prefix.'逻辑续费vip时间失败');
            Db::rollback();
            $this->error('充值失败');
        }

        //添加新的一个task
        $task_data = $order_info;
        $task_data['createtime'] = time();
        $task_data['apple_receipt'] = $receipt_data;
        $task_data['in_app_one'] = json_encode($only_trans);
        $task_data['transaction_id'] = $transaction_id;
        $task_data['times'] = $order_info['times'] + 1;
        $task_data['purchase_date_ms'] = $only_trans['purchase_date_ms'];
        $task_data['expires_date_ms']  = $only_trans['expires_date_ms'];


        $task_id = Db::name('user_vipxufei_task')->insertGetId($task_data);
        if(!$task_id)
        {
            filePut($prefix.'用户添加vipxufei_task失败');
            Db::rollback();
            $this->error('充值失败');
        }

        Db::commit();
        filePut($prefix.'充值成功');
        $this->success('充值成功');

        //逻辑结束
    }

    //金币+vip,苹果内购支付回调，app请求的接口
    public function gold_notify_iosnew(){

        $original_transaction_id = input('original_transaction_id','','trim');
        if(!empty($original_transaction_id)){
            //订阅信息
            $this->expires();
        }

        //苹果内购的验证收据
        $receipt_data = input('apple_receipt', '', 'trim');
        $out_trade_no = input('out_trade_no', '', 'trim');
        $transaction_id = input('transaction_id', '', 'trim');

        if (!$receipt_data || !$out_trade_no || !$transaction_id) {
            $this->error('缺少参数');
        }

        filePut("\r\n\r\n".'新请求');
        $prefix = 'ios充值,登录user_id:'.$this->auth->id.',out_trade_no:'.$out_trade_no.',传入transaction_id:'.$transaction_id.'。';
//        filePut($prefix.'参数apple_receipt:'.$receipt_data);


        Db::startTrans();
        // 查找订单
        $order_map = [
//            'user_id' => $this->auth->id,
            'out_trade_no' => $out_trade_no,
        ];
        $order_info = Db::name('pay_order')->where($order_map)->lock(true)->find();
        if (!$order_info) {
            Db::rollback();
            filePut($prefix.'不存在的订单');
            $this->error('不存在的订单');
        }
        if ($order_info['order_status'] == 1) {
            Db::rollback();
            filePut($prefix.'充值早已完成');
            $this->success('充值已完成');
        }

        // 验证支付状态
        $result = $this->validate_apple_pay($receipt_data);
        if (!$result['status']) {// 验证不通过
            Db::rollback();
            filePut($prefix.'验证'.$result['message']);
            $this->error($result['message']);
        }

        $in_app = $result['data']['receipt']['in_app'];

        $only_trans = [];
        foreach($in_app as $key => $trans){
            //非订阅信息，原始信息
            // $trans['transaction_id'] == $transaction_id 这个不重要，重要的是后面2个。应该也重要，保证这次处理的是初始交易
            if($trans['transaction_id'] == $transaction_id && $transaction_id == $trans['original_transaction_id'] && $trans['product_id'] == $order_info['bundle_id']){
                $only_trans = $trans;
                break;
            }
        }
        if(empty($only_trans)){
            Db::rollback();
            filePut($prefix.'未找到匹配的交易,产品id'.$order_info['bundle_id'].',原始交易id'.$transaction_id);
            $this->error('未找到匹配的交易,产品id'.$order_info['bundle_id'].',原始交易id'.$transaction_id);
        }

        /*
        $count = count($result['data']['receipt']['in_app']);
        $use_count = $count - 1;
        $product_id = $result['data']['receipt']['in_app'][$use_count]['product_id'];
        $my_transaction_id = $result['data']['receipt']['in_app'][$use_count]['transaction_id'];

        if($product_id != $order_info['bundle_id']){
            Db::rollback();
            filePut($prefix.'验证'.'非法请求，请立刻停止product_id:'.$product_id.'!='.$order_info['bundle_id']);
            $this->error('非法请求，请立刻停止，产品id错误');
        }

        if($my_transaction_id != $transaction_id){
            Db::rollback();
            filePut($prefix.'验证'.'非法请求，请立刻停止transaction_id:'.$my_transaction_id.'!='.$transaction_id);
            $this->error('非法请求，请立刻停止，交易id错误');
        }*/


        //逻辑开始
        $args = json_decode($order_info['args'],true);
        //先充值
        if($order_info['table_name'] == 'gold_recharge'){
            $result = model('Wallet')->lockChangeAccountRemain($order_info['user_id'],'gold',$args['gold'],10, '金币充值','pay_order',$order_info['id']);
            if($result['status']===false)
            {
                filePut($prefix.'逻辑添加金币失败');
                Db::rollback();
                $this->error('充值失败');
            }
        }
        //先充值
        if($order_info['table_name'] == 'vip_recharge'){
            $user_info = Db::name('user_wallet')->where('user_id',$order_info['user_id'])->lock(true)->find();
            if($user_info['vip_endtime'] < time()){
                //过期了
                $vip_endtime = time() + (intval($args['days']) * 86400);
            }else{
                //追加vip
                $vip_endtime = $user_info['vip_endtime'] + (intval($args['days']) * 86400);
            }
            $update_data = [
                'vip_endtime'=>$vip_endtime,
            ];
            $result = Db::name('user_wallet')->where('user_id',$order_info['user_id'])->update($update_data);
            if($result === false)
            {
                filePut($prefix.'逻辑续费vip时间失败');
                Db::rollback();
                $this->error('充值失败');
            }
            //订阅vip需要多加的逻辑
            if($order_info['is_lianxu'] == 1){
                $task_data = [
                    'order_id' => $order_info['id'],
                    'user_id' => $order_info['user_id'],
                    'bundle_id' => $order_info['bundle_id'],
                    'days' => $args['days'],
                    'createtime' => time(),
                    'apple_receipt' => $receipt_data,
                    'in_app_one' => json_encode($only_trans),
                    'original_transaction_id' => $only_trans['original_transaction_id'],
                    'transaction_id' => $only_trans['transaction_id'],
                    'status' => 1,
                    'times' => 1,
                    //'notification_type' => 'INITIAL_BUY'.',首次订阅',
                    'original_purchase_date_ms' => $only_trans['original_purchase_date_ms'],
                    'purchase_date_ms'          => $only_trans['purchase_date_ms'],
                    'expires_date_ms'           => $only_trans['purchase_date_ms'], //第一次借用购买时间戳
                ];
                $task_id = Db::name('user_vipxufei_task')->insertGetId($task_data);
                if(!$task_id)
                {
                    filePut($prefix.'用户添加vipxufei_task失败');
                    Db::rollback();
                    $this->error('充值失败');
                }
            }

        }

        // 修改订单状态
        $update_order = [
            'notifytime'=>time(),
            'order_status'=>1,
            'original_transaction_id' => $only_trans['original_transaction_id'],//理论上与 transaction_id 相等
            'in_app_one' => json_encode($only_trans),

        ];
        $ros = Db::name('pay_order')->where(['id' => $order_info['id']])->update($update_order);
        if($ros === false) {
            filePut($prefix.'修改订单状态失败');
            Db::rollback();
            $this->error('充值失败');
        }

        Db::commit();
        filePut($prefix.'充值成功');
        $this->success('充值成功');

        //逻辑结束
    }

    //因前端不传入订单号，作废
    public function gold_notify_ios(){

        //苹果内购的验证收据

        $receipt_data = input('apple_receipt', '', 'trim');
        $order_no = input('order_no', '', 'trim');
        filePut('金币 ios充值:参数apple_receipt='.$receipt_data.',order_no='.$order_no);
        if (!$receipt_data || !$order_no) {
            $this->error('缺少参数');
        }

        Db::startTrans();
        // 查找订单
        $order_info = Db::name('pay_order')->where(['out_trade_no' => $order_no])->lock(true)->find();
        if (!$order_info) {
            Db::rollback();
            filePut('金币 ios充值:订单丢失out_trade_no='.$order_no);
            $this->error('订单丢失');
        }
        if ($order_info['order_status'] == 1) {
            Db::rollback();
            $this->success('充值成功');
        }

        // 验证支付状态
        $result = $this->validate_apple_pay($receipt_data);
        if (!$result['status']) {// 验证不通过
            Db::rollback();
            filePut('金币 ios充值:验证out_trade_no='.$order_no.','.$result['message']);
            $this->error($result['message']);
        }

        $count = count($result['data']['receipt']['in_app']);
        $use_count = $count - 1;
        $args = json_decode($order_info['args'],true);
        if ($result['data']['receipt']['in_app'][$use_count]['product_id'] != $order_info['bundle_id']) {
            Db::rollback();
            filePut('金币 ios充值:非法请求，请立刻停止out_trade_no='.$order_no.','.$result['message'].','.$result['data']['receipt']['in_app'][$use_count]['product_id'].'!='.$order_info['bundle_id']);
            $this->error('非法请求，请立刻停止');
        }

        //逻辑开始
        //先充值
        $result = model('Wallet')->lockChangeAccountRemain($order_info['user_id'],'gold',$args['gold'],10, '金币充值','pay_order',$order_info['id']);
        if($result['status']===false)
        {
            filePut('金币 ios充值:验证out_trade_no='.$order_no.',逻辑添加金币失败');
            Db::rollback();
            return false;
        }

        // 修改订单状态
        $ros = Db::name('pay_order')->where(['out_trade_no' => $order_no])->update(['order_status'=>1,'notifytime'=>time()]);
        if($ros === false) {
            filePut('金币 ios充值:充值失败out_trade_no='.$order_no.','.$result['message'].','.'修改订单状态失败');
            Db::rollback();
            $this->error('充值失败');
        }

        Db::commit();
        $this->success('充值成功');

        //逻辑结束
    }

////////////////////////////////////

    //苹果自动扣费回调
    public function auto_renewal_vip_notify(){
        $this->notify_log_start('ios');
    }

///////////////////////////////////////////////////////////////////////////////////////////////
    //异步日志
    private function notify_log_start($paytype = 'ios'){
        //记录支付回调数据
        ignore_user_abort(); // run script in background
        set_time_limit(30);
        // 日志文件 start
        $log_base_dir = '../paylog/'.$paytype.'/';
        if (!is_dir($log_base_dir))
        {
            mkdir($log_base_dir, 0770, true);
            @chmod($log_base_dir, 0770);
        }
        $notify_file = $log_base_dir.'notify.txt';
        if(!file_exists($notify_file)) {
            @touch($notify_file);
            @chmod($notify_file, 0770);
        }
        if(filesize($notify_file)>5242880)//大于5M自动切换
        {
            rename($notify_file, $log_base_dir.'notify_'.date('Y_m_d_H_i_s').'.txt');
        }
        if(!file_exists($notify_file)) {
            @touch($notify_file);
            @chmod($notify_file, 0770);
        }
        // 日志文件 end
        //开始写入
        $_REQUEST = isset($_REQUEST) ? $_REQUEST : array();
        if($_REQUEST && $paytype == 'alipay') {
            file_put_contents($notify_file, "\r\n\r\n".date('Y-m-d H:i:s')." [notify][入口接收request]".json_encode($_REQUEST), FILE_APPEND);
        } else {
            $xml = file_get_contents("php://input");
            file_put_contents($notify_file, "\r\n\r\n".date('Y-m-d H:i:s')." [notify][入口接收php://input流原始数据] \n".$xml, FILE_APPEND);
            $xmlObj = simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA);
            file_put_contents($notify_file, "\r\n\r\n".date('Y-m-d H:i:s')." [notify][入口接收php://input流] ".json_encode($xmlObj), FILE_APPEND);
        }

        ini_set('display_errors','On');

        return $notify_file;

    }

    /**
     * 验证AppStore内付
     * @param string $receipt_data 付款后凭证
     * @return array                验证是否成功
     */
    function validate_apple_pay($receipt_data = '') {
        // 验证参数
        if (strlen($receipt_data) < 20) {
            $result = array(
                'status' => false,
                'message' => '非法参数'
            );
            return $result;
        }
        // 请求验证
        $html = $this->curl($receipt_data);
        $data = json_decode($html, true);
        $data['sandbox'] = '0';
//        p($data);die;

        if ($data['status'] == '21002') {
            $result = array(
                'status' => false,
                'message' => 'status:21002'
            );
            return $result;
        }

        // 如果是沙盒数据 则验证沙盒模式 21008;正式数据 21007
        if ($data['status'] == '21007') {
            // 请求验证
            $html = $this->curl($receipt_data, 1);
            $data = json_decode($html, true);
            $data['sandbox'] = '1';
        }

        if (isset($_GET['debug'])) {
            exit(json_encode($data));
        }

        if ($data['receipt']['bundle_id'] != 'com.huxiu.tken') {
            $result = array(
                'status' => false,
                'message' => '非法请求',
                'data' => $data
            );
            return $result;
        }
        // 判断是否购买成功
        if (intval($data['status']) === 0) {
            $result = array(
                'status' => true,
                'message' => '购买成功',
                'data' => $data
            );
        } else {
            $result = array(
                'status' => false,
                'message' => '购买失败 status:' . $data['status']
            );
        }

        return $result;
    }

    /**
     * 0	票据校验成功
     * 21000 App Store不能读取你提供的JSON对象25
     * 21002 receipt-data域的数据有问题
     * 21003 receipt无法通过验证
     * 21004 提供的shared secret不匹配你账号中的shared secret
     * 21005 receipt服务器当前不可用
     * 21006 receipt合法，但是订阅已过期。服务器接收到这个状态码时，receipt数据仍然会解码并一起发送
     * 21007 receipt是Sandbox receipt，但却发送至生产系统的验证服务
     * 21008 receipt是生产receipt，但却发送至Sandbox环境的验证服务
     */

    //苹果也是建议这个校验逻辑由服务端完成。服务器需要先去请求正式环境。如果receipt是正式环境的，那么这个时候苹果会返回（21007）告诉我们这个是沙盒的receipt，那么服务器再去请求sandbox环境。
    function curl($receipt_data,$sandbox = 0) {
        //小票信息
        $POSTFIELDS = [
            'receipt-data' => $receipt_data,
            'password'     => '09ef214173a944808ac648b15fa02167'
        ];

        $POSTFIELDS = json_encode($POSTFIELDS, 320);

        //正式购买地址 沙盒购买地址
        $url_buy = "https://buy.itunes.apple.com/verifyReceipt";
        $url_sandbox = "https://sandbox.itunes.apple.com/verifyReceipt";

        //默认后台控制
        if (config('site.ios_pay_sandbox') > 0 ) {
            $url = $url_buy;
        } else {
            $url = $url_sandbox;
        }
        //强制沙盒
        if($sandbox == 1){
            $url = $url_sandbox;
        }

        $ch = curl_init($url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_POST, true);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $POSTFIELDS);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);  //这两行一定要加，不加会报SSL 错误
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
        $response = curl_exec($ch);
        $errno = curl_errno($ch);
        curl_close($ch);

        if ($errno != 0) {
            return $errno;
        } else {
            return $response;
        }
    }

}